Using generic wind turbine models to compare inertial response of wind turbine technologies

This paper describes the use of generic wind turbine models to study the comparative inertial response of wind turbine technologies, that is, their response to a frequency event on the grid such as loss of generation. The dynamic models are manufacturer-independent and portable to any dynamic modeling software. Four dominant types of wind turbine technology are modeled; the basic fixed-speed model is used as a platform to develop dynamic rotor resistance, DFIG and full-converter models. All the models share the same aerodynamic and mechanical characteristics as well as the same induction generator unit. These models are particularly suited for studying inertial response since they employ detailed representations of the wind turbine aerodynamics, drive-train, electrical machine, power converters (when present), and controls. The results showed that converter-based turbines provide poorer inertial response than turbines which do not employ converters.

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